import fetch from 'dva/fetch';
import { notification } from 'antd';
import router from 'umi/router';
import hash from 'hash.js';
import mdf from 'react-native-md5';
import { isAntdPro } from './utils';

const codeMessage = {
  200: '服务器成功返回请求的数据。',
  201: '新建或修改数据成功。',
  202: '一个请求已经进入后台排队（异步任务）。',
  204: '删除数据成功。',
  400: '发出的请求有错误，服务器没有进行新建或修改数据的操作。',
  401: '用户没有权限（令牌、用户名、密码错误）。',
  403: '用户得到授权，但是访问是被禁止的。',
  404: '发出的请求针对的是不存在的记录，服务器没有进行操作。',
  406: '请求的格式不可得。',
  410: '请求的资源被永久删除，且不会再得到的。',
  422: '当创建一个对象时，发生一个验证错误。',
  500: '服务器发生错误，请检查服务器。',
  502: '网关错误。',
  503: '服务不可用，服务器暂时过载或维护。',
  504: '网关超时。',
};

const checkStatus = response => {
  // console.log("response",response)
  if (response.status >= 200 && response.status < 300) {
    return response;
  }

  const errortext = codeMessage[response.status] || response.statusText;
  notification.error({
    message: `请求错误 ${response.status}: ${response.url}`,
    description: errortext,
  });

  const error = new Error(errortext);
  error.name = response.status;
  error.response = response;
  throw error;
};

const cachedSave = (response, hashcode) => {
  /**
   * Clone a response data and store it in sessionStorage
   * Does not support data other than json, Cache only json
   */
  const contentType = response.headers.get('Content-Type');
  if (contentType && contentType.match(/application\/json/i)) {
    // All data is saved as text
    response
      .clone()
      .text()
      .then(content => {
        sessionStorage.setItem(hashcode, content);
        sessionStorage.setItem(`${hashcode}:timestamp`, Date.now());
      });
  }
  return response;
};

// const returnHeaders = () => {
//   let CHECK_HEADERS_OPITON = {};
//   if(sessionStorage.getItem('LOGIN_INFO')){
//     const resultArray = [
//       `${JSON.parse(sessionStorage.getItem('LOGIN_INFO')).stock_code}`,
//       `${JSON.parse(sessionStorage.getItem('LOGIN_INFO')).user_id}`,
//       `web`,
//       `${mdf.hex_md5(navigator.userAgent)}`,
//       `${JSON.parse(sessionStorage.getItem('LOGIN_INFO')).sign}`]
//       .sort()
//       .toString()
//       .replace(/,/g,"&")

//     // CHECK_HEADERS_OPITON = {
//       newOptions.headers = {
//       'USER-ID': JSON.parse(sessionStorage.getItem('LOGIN_INFO')).user_id,
//       'TOKEN': JSON.parse(sessionStorage.getItem("LOGIN_INFO")).token,
//       'TIMESTAMP': Date.parse(new Date()).toString().substr(0, 10),
//       'SOURCE': 'web',
//       'DEVICE-ID': mdf.hex_md5(navigator.userAgent),
//       'SIGN-RESULT': mdf.hex_hmac_md5(JSON.parse(sessionStorage.getItem('LOGIN_INFO')).sign,resultArray),
//     }
//   }
//   // return CHECK_HEADERS_OPITON
// }

/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [option] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export default function request(url, mathods, option) {
  console.log('option', option);
  const options = {
    // expirys: isAntdPro(),
    // ...CHECK_HEADERS_OPITON,
    ...option,
  };

  // console.log("mathod",mathod);
  /**
   * Produce fingerprints based on url and parameters
   * Maybe url has the same parameters
   */
  // const fingerprint = url + (options.body ? JSON.stringify(options.body) : '');
  // const hashcode = hash
  //   .sha256()
  //   .update(fingerprint)
  //   .digest('hex');
  // console.log("hashcode",hashcode)
  // const defaultOptions = {
  //   // credentials: 'include',
  // };
  // console.log("options",options);
  // console.log("options",Object.values(options).filter(function(obj) { console.log("obj",obj); return obj !=="GET" }));
  // console.log("-------",!options.body)
  const newOptions = {};
  const options_arr = Object.values(options);

  // console.log("options_arr",options_arr)
  // if (options_arr.indexOf('POST') != -1) {
  //   options_arr.splice(options_arr.indexOf('POST'), 1);
  //   // options = options_arr;
  //   console.log("发现POST！ >>> ", options_arr)
  //   return options_arr
  // } else if (options_arr.indexOf('GET') != -1) {
  //   options_arr.splice(options_arr.indexOf('GET'), 1);
  //   console.log("GET >>> ", options_arr)
  //   return options_arr
  // }
  // console.log("options_arr",options_arr);

  if (sessionStorage.getItem('LOGIN_INFO')) {
    const header_arr = [
      // `${JSON.parse(sessionStorage.getItem('LOGIN_INFO')).stock_code}`,
      `${JSON.parse(sessionStorage.getItem('LOGIN_INFO')).user_id}`,
      `web`,
      `${mdf.hex_md5(navigator.userAgent)}`,
      `${JSON.parse(sessionStorage.getItem('LOGIN_INFO')).sign}`,
    ];
    const all_arr = options_arr.concat(header_arr);
    // console.log("all_arr",all_arr.sort());
    // console.log("sign",JSON.parse(sessionStorage.getItem('LOGIN_INFO')).sign)
    // CHECK_HEADERS_OPITON = {
    newOptions.headers = {
      TOKEN: JSON.parse(sessionStorage.getItem('LOGIN_INFO')).token,
      TIMESTAMP: Date.parse(new Date())
        .toString()
        .substr(0, 10),
      SOURCE: 'web',
      'DEVICE-ID': mdf.hex_md5(navigator.userAgent),
      'SIGN-RESULT': mdf.hex_hmac_md5(
        JSON.parse(sessionStorage.getItem('LOGIN_INFO')).sign,
        all_arr
          .sort()
          .toString()
          .replace(/,/g, '&')
      ),
    };
    // console.log("header_arr",options)
    newOptions.method = mathods;
  }
  // }
  console.log('method', mathods);
  if (mathods === 'POST' || mathods === 'PUT' || mathods === 'DELETE') {
    console.log('instanceof========', newOptions.body instanceof FormData);
    if (!(newOptions.body instanceof FormData)) {
      newOptions.headers = {
        Accept: 'application/json',
        // 'Content-Type': 'application/x-www-form-urlencoded',
        'Content-Type': 'application/json; charset=utf-8',
        ...newOptions.headers,
      };
      newOptions.body = JSON.stringify(options);
      // newOptions.body = JSON.stringify(options);
      // newOptions.body = options;
      // newOptions.mathod = 'POST',
      // console.log("body",newOptions.body)
    } else {
      // newOptions.body is FormData
      newOptions.headers = {
        Accept: 'application/json',
        ...newOptions.headers,
      };
      // console.log("body",options)
      // newOptions.body = options;
    }
  }

  // const expirys = options.expirys && 60;
  // // options.expirys !== false, return the cache,
  // if (options.expirys !== false) {
  //   const cached = sessionStorage.getItem(hashcode);
  //   const whenCached = sessionStorage.getItem(`${hashcode}:timestamp`);
  //   if (cached !== null && whenCached !== null) {
  //     const age = (Date.now() - whenCached) / 1000;
  //     if (age < expirys) {
  //       const response = new Response(new Blob([cached]));
  //       return response.json();
  //     }
  //     sessionStorage.removeItem(hashcode);
  //     sessionStorage.removeItem(`${hashcode}:timestamp`);
  //   }
  // }

  return (
    console.log('newOptions', newOptions),
    fetch(url, newOptions)
      .then(response => {
        // console.log("response-",response);
        // if (newOptions.method === 'DELETE' || response.status === 204) {
        if (newOptions.methods === 'DELETE' || response.status === 204) {
          return response.text();
        }
        return response.json();
      })
      // .then(checkStatus)
      // .then(response => cachedSave(response, hashcode))
      .then(body => {
        // console.log("body",body.code)
        // DELETE and 204 do not return data by default
        // using .json will report an error.

        if (body.code !== undefined && body.code > 0) {
          throw {
            status: body.code,
            message: body.message,
          };
        } else if (body.flag !== undefined && !body.flag) {
          throw {
            status: body.flag,
            message: body.message,
          };
        }

        return body;
      })
      .catch(e => {
        console.log('e', e);
        const status = e.status;

        if (status === 1121) {
          console.log(e.message);
          window.g_app._store.dispatch({
            type: 'login/logout',
          });
          return;
        }

        if (status === true) {
          console.log(e.message);
          // window.g_app._store.dispatch({
          //   type: 'login/logout',
          // });
          return;
        }

        // if (status === 401) {
        //   // @HACK
        //   /* eslint-disable no-underscore-dangle */
        //   window.g_app._store.dispatch({
        //     type: 'login/logout',
        //   });
        //   return;
        // }
        // environment should not be used
        if (status === 403) {
          router.push('/exception/403');
          return;
        }
        if (status <= 504 && status >= 500) {
          router.push('/exception/500');
          return;
        }
        if (status >= 404 && status < 422) {
          router.push('/exception/404');
        }
      })
  );
}
